Question
In: Mechanical Engineering
Air expands through a turbine operating at steady state. At the inlet, p1 = 150 lbf/in.2,...
Air expands through a turbine operating at steady state. At the
inlet, p1 = 150 lbf/in.2,
T1 = 1400°R, and at the exit,
p2 = 14.8 lbf/in.2,
T2 = 900°R. The mass flow rate of air entering
the turbine is 5 lb/s, and 65,000 Btu/h of energy is rejected by
heat transfer.
Neglecting kinetic and potential energy effects, determine the
power developed, in hp.
Solutions
samet mamat answered 2 years agoRelated Solutions
Air expands through a turbine operating at steady state. At the inlet, p1 = 150 lbf/in.2,...
Air expands through a turbine operating at steady state. At the
inlet, p1 = 150 lbf/in.2,
T1 = 1400°R, and at the exit,
p2 = 14.8 lbf/in.2,
T2 = 900°R. The mass flow rate of air entering
the turbine is 11 lb/s, and 65,000 Btu/h of energy is rejected by
heat transfer.
Neglecting kinetic and potential energy effects, determine the
power developed, in hp.
Water vapor at 800 lbf/in.2, 1000 F enters a turbine operating at steady state and expands...
Water vapor at 800 lbf/in.2, 1000 F enters a turbine operating at
steady state and expands adiabatically to 2 lbf/ in.2, developing
work at a rate of 490 Btu per lb of vapor flowing. Determine the
condition at the turbine exit: two- phase liquid–vapor or
superheated vapor? Also, evaluate the isentropic turbine
efficiency. Kinetic and potential energy effects are
negligible.
Air enters a turbine operating at steady state at 6 bar, 1200 K and expands to...
Air enters a turbine operating at steady state at 6 bar, 1200 K
and expands to 0.8 bar. The turbine is well insulated, and kinetic
and potential energy effects can be neglected.
Assuming ideal gas behavior for the air, what is the maximum
theoretical work that could be developed by the turbine in kJ per
kg of air flow?
Air enters a turbine operating at steady state at 6 bar, 1600 K and expands to...
Air enters a turbine operating at steady state at 6 bar, 1600 K
and expands to 0.8 bar. The turbine is well insulated, and kinetic
and potential energy effects can be neglected. Assuming ideal gas
behavior for the air, what is the maximum theoretical work that
could be developed by the turbine in kJ per kg of air flow?
Air enters a turbine operating at steady state at 10 bar, 1200 K and expands to...
Air enters a turbine operating at steady state at 10 bar, 1200 K
and expands to 0.8 bar. The turbine is well insulated, and kinetic
and potential energy effects can be neglected. Assuming ideal gas
behavior for the air, what is the maximum theoretical work that
could be developed by the turbine in kJ per kg of air flow?
Air enters a compressor operating at steady state with a pressure of 14.7 lbf/in.2, a temperature...
Air enters a compressor operating at steady state with a
pressure of 14.7 lbf/in.2, a temperature of 70°F, and a volumetric
flow rate of 500 ft3/min. The air velocity in the exit pipe is 700
ft/s and the exit pressure is 133 lbf/in.2 If each unit mass of air
passing from inlet to exit undergoes a process described by pv1.34
= constant, determine (a) the exit temperature, in °F, and (b) the
diameter of the exit pipe, in inches.
Water vapor at 5 MPa, 320°C enters a turbine operating at steady state and expands to...
Water vapor at 5 MPa, 320°C enters a turbine operating at steady
state and expands to 0.1 bar. The mass flow rate is 2.52 kg/s, and
the isentropic turbine efficiency is 92%. Stray heat transfer and
kinetic and potential energy effects are negligible.
Determine the power developed by the turbine, in kW.
Water at p1 = 20 bar, T1 = 400oC enters a turbine operating at steady state...
Water at p1 = 20 bar, T1
= 400oC enters a turbine operating at steady state and
exits at p2 = 1.5 bar, T2 =
220oC. The water mass flow rate is 4000 kg/hour. Stray
heat transfer and kinetic and potential energy effects are
negligible.
Determine the power produced by the turbine, in kW, and the rate of
entropy production in the turbine, in kW/K.
Air enters the compressor of a simple gas turbine at p1 = 14 lbf/in2, T1 =...
Air enters the compressor of a simple gas turbine at
p1 = 14 lbf/in2, T1 = 520°R. The
isentropic efficiencies of the compressor and turbine are 83 and
87%, respectively. The compressor pressure ratio is 16 and the
temperature at the turbine inlet is 2500°R. The volumetric flow
rate of the air entering the compressor is 9000 ft3/min.
Use an air-standard analysis.
Determine all temperatures at each state.
A) Determine the net power developed, in Btu/h.
B) Determine the thermal...
Air enters the compressor of a simple gas turbine at p1 = 14 lbf/in2, T1 =...
Air enters the compressor of a simple gas turbine at p1 = 14
lbf/in2, T1 = 520°R. The isentropic efficiencies of the compressor
and turbine are 83 and 87%, respectively. The compressor pressure
ratio is 16 and the temperature at the turbine inlet is 2500°R. The
volumetric flow rate of the air entering the compressor is 9000
ft3/min. Use an air-standard analysis.
Determine the net power developed, in Btu/h.
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